Alternator Buick Skylark 1988 1991 2

Alternator Buick Skylark 1988 1991 2

7937-3N
Alternator
Used On:
Replaces:
Delco 10463102, 10463374, 1101320, GM 10463102

BUICK SKYLARK 1988 2.5L(151) L4
BUICK SKYLARK 1989 2.5L(151) L4
BUICK SKYLARK 1990 2.5L(151) L4
BUICK SKYLARK 1991 2.5L(151) L4
OLDSMOBILE CUTLASS 1988 2.5L(151) L4
OLDSMOBILE CUTLASS 1989 2.5L(151) L4
OLDSMOBILE CUTLASS 1990 2.5L(151) L4
OLDSMOBILE CUTLASS 1991 2.5L(151) L4
PONTIAC GRAND AM 1988 2.5L(151) L4
PONTIAC GRAND AM 1989 2.5L(151) L4
PONTIAC GRAND AM 1990 2.5L(151) L4
PONTIAC GRAND AM 1991 2.5L(151) L4

Specs
• 74 Amp/12 Volt, CW, 4-Groove Pulley, 03:00 Plug Clock
• Delco CS121 Series IR/EF
• MFR:DELCO
• MFR SERIES:CS121 Series
• DESIGN:IR/EF
• VOLTAGE:12
• AMPERAGE:74
• ROTATION:CW
• PLUG CLOCK:03:00 Plug Clock
• PULLEY CLASS:S4
• PULLEY NOTE:52mm OD

The Buick Skylark from the late 1980s and early 1990s is a beloved classic known for its compact design, efficient performance, and reliable GM engineering. Whether you own a coupe or sedan, maintaining the charging system is crucial, especially with the 2.5L inline-4 engine that powers these models. This Buick Skylark alternator replacement addresses common issues like dimming lights, slow cranking, or battery drain often caused by aging original units.

Key Specifications of This Alternator for Buick Skylark 1988-1991

• Series: Delco CS121 IR/EF (Internal Regulator/External Fan)
• Voltage: 12V
• Amperage: 74 Amps – Perfect for stock electrical demands including lights, radio, and accessories
• Rotation: Clockwise (CW)
• Pulley: 4-Groove Serpentine, S4 Class, 52mm OD
• Plug Clock Position: 3:00
• Condition: Professionally remanufactured for like-new performance
• Direct OEM Replacements: Delco 10463102, 10463374, 1101320; GM 10463102

This unit also fits related GM models, including Oldsmobile Cutlass Calais (1988-1991, 2.5L) and Pontiac Grand Am (1988-1991, 2.5L), making it a versatile choice for enthusiasts restoring multiple N-body platform vehicles.

Alternator Buick Skylark 1988 1991 2